TROCHOMORPHA. 123 



It was reported from Angat, Prov. of Bulacan, Luzon, by Hid- 

 algo, this being the locality first given by the native collector from 

 whom all the specimens were obtained ; but subsequently he gave 

 the locality Cuyapo. The above description and the figures are 

 drawn from specimens furnished by Dr. v. Mollendorff. 



T. REPANDA v. Mollendorff. Vol. Ill, pi. 17, figs. 20, 21. 



This species has been figured as a variety of H. metcalfei (Man. 

 Ill, p. 85.) 



Middle Luzon, near Manila, etc. 



Trochomorpha (Videna) repanda MLLDFF., Ber. Senckenb. Ges. 

 1890, p. 211 ; Nachr.-Bl. d. d. Mai. Ges. 1891, p. 42. H. metcalfei 

 var. /5 PFR., Monogr. i, p. 121 ; Conchyl. Cab., p. 97, f. 13, 14. T. 

 boholensis HID., Journ. de Conchyl. 1887, p. 94, t. 4, f. 1 ; not of 

 Semper. 



T. SPLENDENS Semper. PI. 20, figs. 5, 6, 7. 



Shell openly umbilicated, the umbilicus about equalling T the 

 diameter of the basal ; depressed, lens-shaped, thin, very oily-shining, 

 of a horny-waxen color ; acutely carinated,the spire depressed, little 

 conoid. Whorls 6, slowly increasing, a little convex, rather dis- 

 tinctly striated, with no spiral line; suture rather impressed, mar- 

 gined ; last whorl somewhat inflated beneath, almost smooth, 

 roundly-angled around the umbilicus. Aperture moderately oblique, 

 nearly rhombic ; the peristome simple, upper margin straightened, 

 lower deeply curved. 



Alt. 51, diam. 18* ; alt. 6, diam. 18 mill. (Mild/.') 



Zebu, Philippines. 



Tr. (Videna) splendens SEMP., Reis. Phil. Landmoll., p. 118. 

 MLLDFF., Landschn. Cebu, p. 213, t. 8, f. 1. 



Semper described from a young example. The prominent specific 

 characters are the total lack of spiral sculpture, and the oily luster 

 of the surface. 



T. SPLENDIDULA Mollendorff. PI. 20, figs. 1, 2, 3. 



Intermediate between splendens and costellifera, but the shell is 

 smaller, higher, more slowly increasing, the stride more distinct than 

 in the former of these, and it differs from the latter in being a little 

 larger, not ribbed nor spirally striated. The shell is moderately 

 umbilicated, umbilicus s the diameter of the base ; depressed, dis- 

 coid, thin, acutely carinated, horny-yellowish. Spire depressed but 



